Highly efficient photocatalytic hydroxylation of benzene by a novel Fenton-like system: Cu/Mn bimetallic MOF derived carbon-supported materials

Abstract

To enhance the yield of phenol preparation while improving photocatalyst stability and photocatalytic performance, Cu/Mn-MOF with varying Cu/Mn ratios were synthesized via a solvothermal method. The optimal Cu/Mn-MOF were subsequently calcined to obtain carbon-supported composites (denoted as Cu/Mn-MOF@C). Experimental results demonstrated that the phenol yield reached 20.35% after 4 h of photocatalytic benzene hydroxylation using Cu/Mn-MOF@C. Furthermore, the composite exhibited excellent recyclability, with no significant decline in phenol yield observed over five consecutive reaction cycles, while maintaining robust photocatalytic activity. These results suggested that the carbon-supported materials developed in this study hold significant potential for applications in photocatalytic phenol production and provide valuable insights for designing high-efficiency photocatalysts.